On 12/11/07, <b class="gmail_sendername">C. Scott Ananian</b> <<a href="mailto:cscott@laptop.org">cscott@laptop.org</a>> wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
We need a demo which shows off the full-screen video capabilities of<br>the XO. Unfortunately, Record compresses its input rather heavily, so<br>it's not a great demo for video playback. We bundle the Ogg Theora<br>
codecs, and Browse can play media files full-screen, so the first step<br>is for someone to invest some time in transcoding an appropriate demo<br>movie (I suggest<br><a href="http://www.elephantsdream.org/">http://www.elephantsdream.org/
</a> -- some ogg transcoding linked from<br><a href="http://wiki.xiph.org/index.php/Elephants_Dream">http://wiki.xiph.org/index.php/Elephants_Dream</a> ) to an appropriate bit<br>rate / size for the XO. Make it look good!
<br><br>It may be that we need to find a higher-performance (but still free)<br>codec or some such to make this really look good. Help here could be<br>useful, too.</blockquote><div><br>To handle most any digital video format, Quicktime would be easiest to get started.
<br><ul><li>Encode your existing files into DV (using Quicktime pro).<br></li><li>Use gstreamer to encode into ogg files:</li></ul>
<div style="margin-left: 40px;"><span style="font-family: courier new,monospace;">gst-launch-0.10 filesrc location=grover.dv ! dvdemux ! dvdec ! ffmpegcolorspace ! theoraenc ! oggmux ! filesink location=
grover.ogg</span><br><span style="font-family: courier new,monospace;"></span></div><span style="font-family: courier new,monospace;"><br></span>Of
course you will want to alter settings to change the file size, rate,
etc. You would make these changes in the gstreamer pipeline or in quicktime as a pre-processing step.<br>
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